二维定量平衡剖面技术在雄安牛驼镇地区的应用  

Application of 2D quantitative balanced profile technology in the Niutuozhen area of Xiong'an

作　　者：刘文峰 司崇禄 王宇涵 李奇伟 王军锋 晋为真 LIU Wenfeng;SI Chonglu;WANG Yuhan;LI Qiwei;WANG Junfeng;JINWeizhen(SINOPEC Petroleum Engineering Geophysics Co.,Ltd.,Nanjing 210009,China)

机构地区：[1]中石化石油工程地球物理有限公司,江苏南京210009

出　　处：《复杂油气藏》2024年第3期281-287,共7页Complex Hydrocarbon Reservoirs

摘　　要：雄安新区为2017年设立的经济特区,为保障雄安新区地下工程安全建设、需要研究其地下地层变形特征,为雄安地区深部三维地质结构和稳定性评价提供基础资料。针对雄安牛驼镇凸起,采用平衡剖面技术和2D Move软件对过牛驼镇凸起地震剖面进行构造还原恢复,定量计算了牛驼镇凸起及其周边新生代地层横向伸展量和相对伸展速率、纵向地层压缩率和压缩速率。研究认为牛驼镇地区横向拉伸变形最快时期为孔店组—沙四段、伸展速率为0.5137 mm/a;最慢时期为馆陶组—平原组、伸展速率为0.017 mm/a,从古近系至新近系牛驼镇地区拉张伸展作用逐渐减弱。牛驼镇地区纵向压实-成岩作用最强烈时期为孔店组—沙四段、压缩速率为42.5 m/Ma。孔店组—沙四段是牛驼镇凸起区横、纵向地层变形程度和规模最大时期。还原恢复过程准确、定量,可为地下三维地质结构创建和地质稳定性评价提供准确参考。The Xiong′an New Area is a special economic zone established in 2017.In order to ensure the safe construction of underground projects in the Xiong′an New Area,it is necessary to study the deformation characteristics of its underground strata and to provide basic data for the evaluation of the deep three-dimensional geological structure and stability of the Xiong′an Area.For the Niutuozhen Uplift in the Xiong′an,we used the balanced profile technology and 2D Move software to restore the seismic profile of the Niutuozhen Uplift,and quantitatively calculated the lateral extension amount and relative extension rate of the Cenozoic strata in and around the Niutuozhen Uplift,as well as the vertical stratigraphic compressibility and compression rate.The research shows that the fastest period of transverse tensile deformation in the Niutuozhen area is the Kongdian Formation-the fourth member of the Shahejie Formation,with an extension rate of 0.5137 mm/a,and the slowest period is the Guantao Formation-Pingyuan Formation,with an extension rate of 0.017 mm/a,and the tensile extension in Niutuozhen area is gradually weakened from the Paleogene to the Neogene.The strongest period of longitudinal compaction and diagenesis in the Niutuozhen area is the Kongdian Formation-the fourth member of the Shahejie Formation,with a compression rate of 42.5 m/Ma.The Kongdian Formation-the fourth member of the Shahejie Formation is the largest period of horizontal and vertical strata deformation in the Niutuozhen Uplift area.The restoration process is accurate and quantitative,which can provide a accurate reference for the creation of underground 3D geological structure and the evaluation of geological stability.

关 键 词：定量 平衡剖面技术 构造恢复 牛驼镇凸起 雄安地区 

分 类 号：P542[天文地球—构造地质学]